feat(github-release): update k3s-io/k3s to v1.28.2+k3s1 (#951)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

bootstrap/templates/addons/system-upgrade-controller/plans/agent.yaml.j2

@@ -6,7 +6,7 @@ metadata:
   namespace: system-upgrade
 spec:
   # renovate: datasource=github-releases depName=k3s-io/k3s
-  version: "v1.27.4+k3s1"
+  version: "v1.28.2+k3s1"
   serviceAccountName: system-upgrade
   concurrency: 1
   nodeSelector:

bootstrap/templates/addons/system-upgrade-controller/plans/server.yaml.j2

@@ -6,7 +6,7 @@ metadata:
   namespace: system-upgrade
 spec:
   # renovate: datasource=github-releases depName=k3s-io/k3s
-  version: "v1.27.4+k3s1"
+  version: "v1.28.2+k3s1"
   serviceAccountName: system-upgrade
   concurrency: 1
   cordon: true